[INFO] cloning repository https://github.com/ChrisDavison/an
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ChrisDavison/an" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChrisDavison%2Fan", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChrisDavison%2Fan'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ec58e0c8c059d41859e57f25160d5731892f6d5
[INFO] checking ChrisDavison/an against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChrisDavison%2Fan" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ChrisDavison/an on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ChrisDavison/an
[INFO] finished tweaking git repo https://github.com/ChrisDavison/an
[INFO] tweaked toml for git repo https://github.com/ChrisDavison/an written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ChrisDavison/an already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.71
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.71
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.71
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.71
[INFO] [stderr]   Downloaded mdlc v0.8.1
[INFO] [stderr]   Downloaded tagsearch v0.27.0
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.21
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.71
[INFO] [stderr]   Downloaded h2 v0.3.23
[INFO] [stderr]   Downloaded js-sys v0.3.48
[INFO] [stderr]   Downloaded web-sys v0.3.48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2a4a35c7dfa0a8cfded62ff23092b8c444593997ac210828fc256ba68fb5f58
[INFO] running `Command { std: "docker" "start" "-a" "d2a4a35c7dfa0a8cfded62ff23092b8c444593997ac210828fc256ba68fb5f58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2a4a35c7dfa0a8cfded62ff23092b8c444593997ac210828fc256ba68fb5f58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2a4a35c7dfa0a8cfded62ff23092b8c444593997ac210828fc256ba68fb5f58", kill_on_drop: false }`
[INFO] [stdout] d2a4a35c7dfa0a8cfded62ff23092b8c444593997ac210828fc256ba68fb5f58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81909b47c9b8bdaf6609cdec8112b3941e5d8795cdf184a574aaa7617b77ad90
[INFO] running `Command { std: "docker" "start" "-a" "81909b47c9b8bdaf6609cdec8112b3941e5d8795cdf184a574aaa7617b77ad90", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking http v0.2.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling rustls v0.21.10
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling ring v0.17.7
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking rustls-pemfile v1.0.4
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking webpki-roots v0.25.3
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking h2 v0.3.23
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling clap_derive v3.1.2
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking tagsearch v0.27.0
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking clap v3.1.2
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking hyper-rustls v0.24.2
[INFO] [stderr]     Checking reqwest v0.11.23
[INFO] [stderr]     Checking mdlc v0.8.1
[INFO] [stderr]     Checking an v0.15.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.41s
[INFO] running `Command { std: "docker" "inspect" "81909b47c9b8bdaf6609cdec8112b3941e5d8795cdf184a574aaa7617b77ad90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81909b47c9b8bdaf6609cdec8112b3941e5d8795cdf184a574aaa7617b77ad90", kill_on_drop: false }`
[INFO] [stdout] 81909b47c9b8bdaf6609cdec8112b3941e5d8795cdf184a574aaa7617b77ad90